CN207868401U - A kind of vertical interconnection architecture based on Butler network - Google Patents
A kind of vertical interconnection architecture based on Butler network Download PDFInfo
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- CN207868401U CN207868401U CN201820099163.3U CN201820099163U CN207868401U CN 207868401 U CN207868401 U CN 207868401U CN 201820099163 U CN201820099163 U CN 201820099163U CN 207868401 U CN207868401 U CN 207868401U
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Abstract
The utility model is related to electronic communication fields, more particularly to the vertical interconnection architecture of Butler network, it provides a kind of vertical interconnection architecture based on Butler network, the Butler network includes signal excitation end, phase shifter, electric bridge and signal output end, the signal excitation end of the Butler network is connected to the input terminal of level-one electric bridge, it is connected to phase shifter through level-one bridge output, the input terminal of two level electric bridge is connected to by phase shifter, again phase shifter is connected to through two level bridge output, the input terminal of three-level electric bridge is connected to after shifted device, it is connected to signal output end through three-level bridge output；The phase shifter is used for microwave signal phase shift, realizes multi-angle phase shift；The electric bridge is used for power distribution and phase shift；Multi-angle Wave beam forming can be realized using the vertical interconnection architecture, ensure microwave signal is effectively matched transmission, effectively reduces volume, realizes the optimization of technical performance index, while reducing cost using microwave multi-layer boards and reducing insertion loss.
Description
Technical field
The utility model is related to electronic communication fields, and in particular to the vertical interconnection architecture of Butler network.
Background technology
In radar system, antenna realizes comprehensive covering of range of exposures by the switching between wave beam.Different time
Different wave beams is selected, 180 ° of ken coverings not only may be implemented, but also transmitting can be increased or receive power.Wherein Butler
Network is exactly the ideal feeding network for realizing this beam switchover.But in ka frequency ranges, which is limited by space structure,
How will be as key using the characteristic functions of space structure realization Butler network.
In ka frequency ranges, realize that the mode of the microwave structure has a microstrip structure, SIW (medium integrated waveguide) structures and band-like
Cable architecture.Microstrip structure has occupied space big, and that the line is busy is wider for printed board matched line, and structural support can only generally use wire chamber
The characteristics of body, at most realization two-sided structure.SIW structures have circuit structure larger, it is also desirable to have metal cavity as support, together
When can not effectively be unfolded on the Z axis of space, be only capable of realizing on two dimensional surface, compared with microstrip structure volume bigger, quality is also heavier
The characteristics of.The common circuit mode of domestic contrast is strip lines configuration at present, generally uses LTCC (low-temperature co-fired ceramics) material
It realizes, which is easy to space cascade, but the problem is that product cannot achieve the function of multi-angle Wave beam forming, is inserted into
It is lost larger and of high cost.
Utility model content
The utility model is to overcome traditional microwave structure to cannot achieve multi-angle Wave beam forming and volume is big, cost
High problem.
Technical solution adopted by the utility model to solve its technical problems is：A kind of hanging down based on Butler network is provided
Straight interconnection architecture, the Butler network include signal excitation end, phase shifter, electric bridge and signal output end, the Butler
The signal excitation end of network is connected to the input terminal of level-one electric bridge, is connected to phase shifter through level-one bridge output, passes through phase shift
Device is connected to the input terminal of two level electric bridge, then is connected to phase shifter through two level bridge output, and three-level is connected to after shifted device
The input terminal of electric bridge is connected to signal output end through three-level bridge output；The phase shifter is for realizing the more of microwave signal
Angle phase shift；The electric bridge is used for power distribution and phase shift；Wherein microwave signal is inputted from signal excitation end, passes through electric bridge
Signal output end output is transported to after power distribution and phase shifter phase shift.
Further, when the signal excitation end either port gives excitation, signal output end port exports microwave signal
Amplitude it is identical, phase be in equal difference relationship.
Further, the Butler network is using two-dimentional brick structure, wherein at least 8 layer of 8 × 8 Butler wave beam net
Network forms lateral arrangement, is formed at least 8 layer of 8 × 8 Butler longitudinal direction wave beam network vertical to inserting.
Further, the Butler network is realized using microwave multi-layer boards.
Further, the Z-direction of the microwave multi-layer boards is connected with strip line plane.
The utility model has the beneficial effects that：Multi-angle Wave beam forming can be realized using the vertical interconnection architecture, ensured
Microwave signal is effectively matched transmission, effectively reduces volume, realizes the optimization of technical performance index, while using microwave multi-layer boards
It reduces cost and reduces insertion loss.
Description of the drawings
Fig. 1 is a kind of vertical interconnection architecture network diagram based on Butler network of the utility model；
Reference numeral：R- signals encourage end, A- signal output ends, X- phase shifters, Y- phase shifters, Z- phase shifters, W- phase shifts
Device.
Specific implementation mode
The utility model is described in further detail with reference to specific embodiment, but the embodiment party of the utility model
Formula is without being limited thereto.
The utility model provides a kind of vertical interconnection architecture based on Butler network, and the Butler network includes signal
End, phase shifter, electric bridge are encouraged, the electric bridge includes level-one electric bridge, two level electric bridge and three-level electric bridge and signal output end, institute
The signal excitation end for stating Butler network is connected to the input terminal of level-one 3dB electric bridges, and shifting is connected to through level-one 3dB bridge outputs
Phase device is connected to the input terminal of two level 3dB electric bridges by phase shifter, then is connected to phase shifter through two level 3dB bridge outputs, warp
It is connected to the input terminal of three-level 3dB electric bridges after phase shifter, signal output end is connected to through three-level 3dB bridge outputs；The shifting
Phase device for realizing microwave signal multi-angle phase shift；Wherein multi-angle phase shift includes X phase shifters for 45 ° of phase shifts, Y phase shifters
For 0 ° of phase shift, Z phase shifters 22.5 ° of phase shifts are used for for 67.5 ° of phase shifts and W phase shifters；The electric bridge is used for power distribution
And 90 ° of phase shifts；Wherein microwave signal is inputted from signal excitation end, by being conveyed after the power distribution of electric bridge and phase shifter phase shift
It is exported to signal output end.Volume can be effectively reduced using the network, ensured while realizing multi-angle beamforming function
Microwave signal is effectively matched transmission, and signal output end realizes comprehensive covering of range of exposures by phase shifter phase shift.
Wherein, when the signal excitation end either port gives excitation, signal output end port exports the width of microwave signal
Spend it is identical, phase be in equal difference relationship.It is furthermore preferred that the Butler network is using two-dimentional brick structure, wherein at least eight 8 ×
8 Butler beam-forming networks are laterally arranged, and with 8 × 8 Butler network of longitudinal at least eight to insert row cloth, are formed vertical mutual
It is coupled structure.Using the vertical interconnection architecture integration of equipments degree is further promoted, volume becomes smaller, cost reduction.The knot
Structure is the ideal feeding network for realizing this beam switchover using two-dimentional Butler network.
It is furthermore preferred that the vertical interconnection architecture of two-dimentional Butler network is realized using microwave multi-layer boards；Using microwave multilayer
Plate (adding ceramic powder based on PTFE) realizes strip lines configuration, is easy to space interconnection, advantage is light weight, small, insertion loss
Low (being almost the 1/4 of LTCC), (being almost the 1/5 of LTCC) at low cost.
Wherein, the Z-direction of the microwave multi-layer boards is connected with strip line plane.Very due to actual product volume requirement
It is small, while thickness only has 5.5mm, while also to match connector, use spatially just becomes particularly important, so using multilayer
Planar structure is realized then in conjunction with vertical interconnection spatially.
In radar system, antenna realizes comprehensive covering of range of exposures by the switching between wave beam.Different time
Different wave beams is selected, 180 ° of kens not only may be implemented and cover extensively, but also increases transmitting or receives power.Butler
Network is exactly the ideal feeding network for realizing this beam switchover.Network is mainly used in communication system, realizes multi-angle
The formation of wave beam.It is transported to each antenna element by microwave signal power distribution in systems and phase shift and realizes sweeping for wave beam
It retouches.The elemental device of two-dimentional Butler network is 8 × 8 Butler networks, the schematic diagrams of 8 × 8 Butler networks as shown in Figure 1,
Eight microwave signals encourage end R1-R8, wherein any one port input signal, first pass through first order 3dB electric bridges into
Row power distribution and 90 ° of phase shifts, then by the multi-angle phase shift of phase shifter, wherein multi-angle phase shift includes that X phase shifters are used for
45 ° of phase shifts, Y phase shifters are used for 22.5 ° of phase shifts for 67.5 ° of phase shifts and W phase shifters, then pass through for 0 ° of phase shift, Z phase shifters
Cross second segment 3dB electric bridges and carry out power distribution and 90 ° of phase shifts, after pass through the last time phase shift of phase shifter, input third section 3dB
Electric bridge carries out power distribution and 90 ° of phase shifts, from the microwave signal of the required phase of aerial signal output terminals A 1-A8 outputs.Signal swashs
End either port is encouraged when giving excitation, the amplitude that aerial signal output end port exports microwave signal is identical, and phase is in equal difference pass
System.Therefore, signal excitation end R1 explanations are chosen, when exporting microwave signal from signal excitation end R1, are first passed around in first row
Level-one 3dB electric bridges carry out power distribution and 90 ° of phase shifts, therewith according to required phase by Z phase shifters and/or Y phase shifters into
Row phase shift, enters the two level 3dB electric bridges in first row if by Z phase shifter phase shifts, and output is in first row to described
The connected X phase shifters and/or Y phase shifters of two level 3dB electric bridges carry out phase shift, be in first row wherein entering by X phase shifters
Three-level 3dB electric bridges after, export to A1 and/or A5 signal output ends, wherein by Y phase shifters enter be in tertial three-level
After 3dB electric bridges, output to A3 and/or A7 signal output ends；Enter the two level in secondary series if by Y phase shifter phase shifts
3dB electric bridges, output carry out phase shift to the X phase shifters and/or Y phase shifters of the two level 3dB electric bridge connections in secondary series,
Wherein after X phase shifters enter the three-level 3dB electric bridges in secondary series, export to A2 and/or A6 signal output ends, wherein passing through
Y phase shifters are crossed into after being in the three-level 3dB electric bridges of the 4th row, output to A4 and/or A8 signal output ends；It is a letter above
Number excitation end input signal institute is through process, and other arbitrary signals excitation end input signals are similarly.Specific phase difference correspondence
As shown in table 1, it can be achieved that different time selects different wave beams, so that 180 ° of kens cover extensively.
1 beam-forming network phase meter of table
| Excitation port | R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 |
| Phase difference | -7/8π | -5/8π | -3/8π | -1/8π | 1/8π | 3/8π | 5/8π | 7/8π |
Claims (5)
1. a kind of vertical interconnection architecture based on Butler network, it is characterised in that：The Butler network includes signal excitation
End, phase shifter, electric bridge and signal output end, the signal excitation end of the Butler network are connected to the input of level-one electric bridge
End, is connected to phase shifter through level-one bridge output, the input terminal of two level electric bridge is connected to by phase shifter, then through two level electric bridge
Output end is connected to phase shifter, and the input terminal of three-level electric bridge is connected to after shifted device, and letter is connected to through three-level bridge output
Number output end；The phase shifter for realizing microwave signal multi-angle phase shift；The electric bridge is used for power distribution and phase shift；
Wherein microwave signal is inputted from signal excitation end, by being transported to signal output end after the power distribution of electric bridge and phase shifter phase shift
Output.
2. a kind of vertical interconnection architecture based on Butler network as described in claim 1, it is characterised in that：The signal swashs
End either port is encouraged when giving excitation, the amplitude that signal output end port exports microwave signal is identical, and phase is in equal difference relationship.
3. a kind of vertical interconnection architecture based on Butler network as described in claim 1, it is characterised in that：The Butler
Network is using two-dimentional brick structure, wherein at least 8 layer of 8 × 8 Butler wave beam network forms lateral arrangement, at least 8 layer 8
× 8 Butler longitudinal direction wave beam networks are formed vertically to inserting.
4. a kind of vertical interconnection architecture based on Butler network as claimed in claim 3, it is characterised in that：The Butler
Network is realized using microwave multi-layer boards.
5. a kind of vertical interconnection architecture based on Butler network as claimed in claim 4, it is characterised in that：The microwave is more
The Z-direction of laminate is connected with strip line plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201820099163.3U CN207868401U (en) | 2018-01-19 | 2018-01-19 | A kind of vertical interconnection architecture based on Butler network |
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| CN201820099163.3U CN207868401U (en) | 2018-01-19 | 2018-01-19 | A kind of vertical interconnection architecture based on Butler network |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110534920A (en) * | 2019-09-23 | 2019-12-03 | 中国航空无线电电子研究所 | Flexible Butler feeding network |
| CN111987417A (en) * | 2020-09-14 | 2020-11-24 | 电子科技大学 | Multi-beam dual-polarized antenna for 5G-Sub6G Massive MIMO |
-
2018
- 2018-01-19 CN CN201820099163.3U patent/CN207868401U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110534920A (en) * | 2019-09-23 | 2019-12-03 | 中国航空无线电电子研究所 | Flexible Butler feeding network |
| CN111987417A (en) * | 2020-09-14 | 2020-11-24 | 电子科技大学 | Multi-beam dual-polarized antenna for 5G-Sub6G Massive MIMO |
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